[Bug 2042698] Re: Ubuntu 22.04.3 LTS

[Julian Andres Klode]

Hi, thank you for your bug report but the behaviour is intentional.
Detection of other OS in grub relies on os-prober which is disabled by
default in recent grubs due to security issues, if no other OS has been
detected during first setup or previous runs of update-grub.

To reenable that you can use GRUB_DISABLE_OS_PROBER=false in
/etc/default/grub or delete /boot/grub/grub.cfg before running update-
grub to switch it to new install mode temporarily.

Note that booting multiple OS this way does not work with secure boot,
it is generally advisable to use your BIOS boot menu to select a boot
device (each OS adds its own boot entry there, so you should have e.g.
Ubuntu, Manjaro etc.)

https://launchpad.net/bugs/1955109

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https://bugs.launchpad.net/bugs/2042698

Title:
  Ubuntu 22.04.3 LTS

Status in grub2 package in Ubuntu:
  Invalid

Bug description:
  package grub2-common 2.06-2ubuntu7.2

  Next to ubuntu I tried to install the following linux distributions:
  Manjaro , Arch Linux Gui , Solus.
  It seems that they all have problems with GPT support
  because they all don't want to boot from GPT hard drive.

  I tried from Ubuntu 22.04.3 LTS " sudo update-grub "
  but can't detect Manjaro , Arch Linux Gui , Solus.

  I have one more problem, I don't know how to manage all GRUB-s on EFI fat32 partition.
  The msdos partition system is simpler than GPT because I can set boot flag on any partition
  and the system will boot from the selected partition.

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